JEE Main 2026 — Wave Optics Question with Solution
JEE Main 2026 (24 January Shift 1)
Question
An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (incident medium) and (medium) respectively. To satisfy the condition that reflected and refracted rays are perpendicular to each other, the angle of incidence is .
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
For reflected and refracted rays to be perpendicular, if is the angle of incidence and is the angle of refraction, then , giving .
Applying Snell's law:
Applying Snell's law:
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This is a previous-year question from JEE Main 2026, covering the Wave Optics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.